Forget-Me-Not Lapel Pin

In 1934, soon after Hitler’s rise to power, it became evident
that Freemasonry was in grave danger. Realizing this danger,
the Freemasons went undercover and adopted a little blue
flower, the forget-me-not, to replace the Square & Compass
as the symbol whereby the Brethren could identify each other
in public as well as in the concentration camps of Europe.
In 1948, when lodges reopened following World War II, this
became the official Masonic emblem in honor of the valiant
Brethren who carried on their Masonic work under very
adverse conditions.